//package com.ssm.demo;
//import org.slf4j.Logger;
//import org.slf4j.LoggerFactory;
//public class Test {
//    private static final Logger LOGGER = LoggerFactory.getLogger(Test.class);
//
//    public static void main(String[] args) {
//        String s = "hello";
//        LOGGER.error("Error is : {}",s);
//    }
//}
